Sale!
Magnetic Door-Window Alarm 2-Pack, 90 dB Entry Alert, Magnetic Contact Sensor, Adhesive Installation, Battery Operated with Batteries Included, No Wiring Required, Home Apartment Renter Security
These magnetic door-window alarms trigger a 90 dB alert the moment a protected entry opens—simple adhesive installation means you can secure doors and windows in seconds without any wiring, drilling, or professional help required.
- 90 dB entry alert – Loud enough to startle intruders and alert all household members immediately
- Magnetic contact sensor – Triggers instantly when door or window separates from frame during entry
- 2-pack value – Protect two entry points with one purchase for comprehensive coverage
- Adhesive mount installation – Stick to door/window frame; no wiring, drilling, or tools needed
- Batteries included – Ready to install immediately out of the package for instant protection
- Renter-friendly – Removes cleanly without damaging surfaces when you move to new location
Original price was: $13.00.$11.05Current price is: $11.05.
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Covered by a 30-Day Money Back Guarantee. If it’s not right for you, returns are easy and hassle-free.
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Entry point detection is security 101—know when doors and windows open. These magnetic alarms provide instant, loud alerts when protected entries are breached, with zero installation complexity and no professional help required.
Who This Alarm Is Best For:
- Renters wanting portable security they can take when moving
- Homeowners supplementing existing security systems
- Anyone wanting simple entry detection without wiring
Is This the Right Self-Defense Option for You?
Choose this door-window alarm if you want:
- Simple entry point detection
- Instant adhesive installation
- Portable security for renters
- Budget-friendly protection
Consider something else if you need:
- Glass break detection → Glass Break Alarm
- Travel door security → Door Guard Alarm
- Motion detection → Barking Dog Alarm
Instant Detection, Instant Alert
The two-piece magnetic contact system triggers the moment the door or window separates from its frame—no delay, no gap in protection. The 90 dB alarm is loud enough to startle intruders (potentially causing them to flee) and alert anyone in the home to the breach.
True Zero-Installation Security
Adhesive backing means installation takes seconds: clean the surface, peel, stick, done. Place the larger unit on the door/window, align the magnetic piece on the frame. When they separate, the alarm sounds. No wiring, no tools, no professional help required.
Practical Details
Batteries included (three LR44/AG13 button cells per unit). Compact design: 2.5″ x 1.75″ x 0.75″. White housing matches most door and window frames. On/off switch for easy control. One-year warranty from Safety Technology. Works on doors, windows, cabinets—any hinged entry point.
Know when entries open. Add to your cart today.
Quick Comparison: Entry Detection Options
| Feature | Magnetic Alarm | Glass Break | Door Guard |
|---|---|---|---|
| Detects | Opening ✓ | Glass break | Door movement |
| Volume | 90 dB | 100 dB ✓ | 98 dB |
| Portable | Yes ✓ | Yes ✓ | Maximum ✓ |
| Best For | Doors/windows | Glass panels | Travel |
Frequently Asked Questions
How far can the magnet be from the unit?
The magnetic pieces should be within 0.5 inch when the door/window is closed. Wider gaps may prevent proper triggering.
Will this work on metal doors?
The adhesive works on metal surfaces. The magnetic sensor functions normally regardless of door material.
How long do batteries last?
Button cell batteries typically last 6-12 months. The unit only draws power when triggered, extending life significantly.
| Manufacturer | Safety Technology |
|---|---|
| Decibles | 90 db |
| Battery | Three 1.5V LR44/AG13 Button Cell (Included) |
Additional information
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